Herrtronic, Model 6000 – Herrmidifier Herrtronic 6000 Series User Manual

Page 13

Herrtronic

Model 6000

I n s t a l l a t i o n , O p e r a t i o n , & M a i n t e n a n c e M a n u a l

www.herrmidifier-hvac.com

SECTION V TROUBLESHOOTING GUIDE

All Herrmidifier 6000 Series Humidifiers are manufactured under

strict quality control and are subjected to a complete operational

test before shipment. All circuit board adjustments are made at

the factory and should not be adjusted beyond the guidelines

set in this troubleshooting guide without first consulting a fac-

tory representative. The following information is for your help

and reference. If you still experience difficulty after trying these

remedies, contact your Herrmidifier representative.

WARNING!

The Herrmidifier 6000 Series Electronic Steam Humidi-

fier cabinet was designed to house and shield the com-

ponents from outside interference. Absolutely NO other

components may be mounted inside or be electrically

tapped into the humidifier without Herrmidifier’s express

written permission. Failure to heed this warning will void

your warranty.

TEST POINTS

Each circuit board (See Figure 12) features three test points to

aid in the troubleshooting process. Each of these test points

works on a 0-4 VDC scale. “0 VDC” = 0%. “4 VDC” = 100%. All

readings are between the test point and ground (Molex J1, ter-

minal 11 [far right of molex connector, wire #11).

Test Point #1:

Provides exact reading of drain threshold setting.

Test Point #2:

Provides circuit board reference voltage. Should always

read 4 VDC +/-2%.

Test Point #3:

Provides actual percentage of output. For example, a unit

running at 80% of maximum output would have a Test Point

#3 to ground reading of 3.2 VDC.

Maximum Capacity Setpoint

The potentiometer labeled “R39” located in the top left-hand cor-

ner of the board allows adjustment of the unit’s capacity in the

range of 50-100% of maximum.

NOTE:

All blower units have their capacity set from the factory

at 4 lbs/hr. These units can have their capacity increased

by increasing the capacity adjustment potentiometer. En-

sure there is sufficient air circulation in the conditioned

space to prevent condensation on walls or ceiling when

increasing the capacity above 4 lbs/hr.

Circuit Board Settings

Models

Time Cycle

R23

Low Drain

Setting, R18

Capacity,

R39

Standard Settings

All

60 sec

100%

High Conductivity Settings (> 1000 micromho)

All

84 sec

90%

Softened Water Settings (750-1000 micromho)

All

60 sec

95%

Low Conductivity Settings (<100 micromho)

All

60 sec

100%

TP3

TP1
TP2

CAP

ADJ

R18

R23

SEC

PROP

DISPLAY

CR17

CR18

Test point #2

(Equilibrium voltage reading)

Test point #1

(Drain threshold reading)

Capacity adjustment pot

CR17 LED - overamp

condition indicator if

illuminated

CR18 diode drain

tempering socket

J1 Connector

Cycle timer pot

Low drain

threshold pot

R4 Capacity

resistor socket

(Output capacity)

Test point #3

Figure 12